Air Conditioning System

The air conditioning system efficiently delivers fresh air to users indoors by using radiant equipment and wind direction adjustment, addressing energy inefficiencies in conventional systems and ensuring wide room coverage and personalized airflow.

JP7614034B2Active Publication Date: 2025-01-15SHIMIZU CORP
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Patent Information

Application Number
JP2021105712
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-06-25
Publication Date
2025-01-15
Estimated Expiration
2041-06-25

AI Technical Summary

Technical Problem

Conventional convection air conditioning systems require significant energy to deliver fresh air indoors, making it inefficient for widespread distribution.

Method used

An air conditioning system with radiant air conditioning equipment, desiccant air conditioners, and wind direction adjustment units that supply fresh air through floor outlets directed vertically below the top plate, allowing air to flow upward along users, and a control unit to adjust airflow based on user presence and position.

Benefits of technology

Efficient supply of fresh air to users indoors with reduced energy consumption, ensuring wide room coverage and personalized airflow adjustment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide an air conditioning system which can supply fresh air to a user in a room.SOLUTION: An air conditioning system 100 is provided at a building where furniture 110 formed with a space T located vertically below a top plate 112 is placed. A first air outlet 2 is provided on a floor 104 of the building. The first air outlet 2 blows fresh air toward the space T formed vertically below the top plate 112 and includes a wind direction adjustment part 110 which adjusts a wind direction of the fresh air A so that the fresh air A flows toward a user P in a space chamber of the building.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to an air conditioning system. [Background technology]

[0002] Conventionally, convection air conditioning systems that agitate conditioned air have been known as air conditioning systems for offices, conference rooms, etc. For example, systems are known in which conditioned air is blown into a room from an air outlet or air conditioning equipment installed on a ceiling surface, and is agitated and mixed with the indoor air to adjust the temperature to a predetermined level.

[0003] In addition to the air conditioning equipment, ventilation equipment is also provided. Fresh outdoor air is supplied to the room to maintain a constant air environment. In some cases, an outlet for blowing out fresh air is provided directly in the room, and in other cases, the fresh air is introduced into the room via the air conditioning equipment (see Patent Document 1).

[0004] In recent years, there has been an outbreak of infectious diseases caused by the new coronavirus, and from the perspective of preventing infection, there is a demand for well-ventilated indoor environments. It is desirable to introduce fresh air into a room and distribute young air (high freshness) widely throughout the room. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 7-145957 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the above-mentioned convection air-conditioning system, a huge amount of energy is required, such as for all outdoor air conditioning, in order to deliver young air to users indoors.

[0007] Therefore, the present invention has been made in consideration of the above circumstances, and provides an air conditioning system that can supply fresh air to users in a room. [Means for solving the problem]

[0008] In order to achieve the above object, the present invention employs the following means. That is, the air conditioning system according to the present invention is an air conditioning system installed in a building in which fixtures are arranged so that a space is formed vertically below the top plate, The system comprises a radiant air conditioning device installed on a ceiling, a desiccant air conditioner that introduces fresh air, and a wind direction adjustment unit that adjusts the wind direction of the fresh air so that the fresh air flows toward a user in a space of the building, The floor of the building The fresh air introduced from the desiccant air conditioner is blown out. A first air outlet is provided, and the first air outlet is directed toward the space formed vertically below the top plate. The above It is characterized by blowing out fresh air.

[0009] In the air conditioning system configured in this manner, a first air outlet is provided on the floor. The first air outlet blows fresh air toward the space vertically below the top plate of the fixture. As a result, the fresh air passes through the space vertically below the top plate and moves upward along the user through the gap between the top plate and the user facing the top plate. Thus, fresh air can be supplied to the user in the space. In addition, since the airflow direction adjustment unit adjusts the direction of the fresh air so that it flows toward the users in the space chamber, the fresh air is more likely to reach the users while its age is still young.

[0012] In the air conditioning system according to the present invention, the airflow direction adjustment unit may be the fixture, and the top plate may be disposed directly above the first air outlet.

[0013] In an air conditioning system configured in this way, the top plate of the fixture (airflow direction adjustment unit) is positioned directly above the first air outlet. As a result, when the fresh air blown out from the first air outlet moves upward and reaches the underside of the top plate, it moves upward along the user through the gap between the top plate and the user. The fresh air is supplied to the user's mouth by riding on the rising air current of the heat emitted by the user. This makes it easier for the fresh air to reach the user's mouth while still young.

[0014] The air conditioning system according to the present invention may further include a control unit that adjusts the amount of the fresh air blown out from the first air outlet.

[0015] In an air conditioning system configured in this manner, the control unit adjusts the amount of fresh air blown out from the first air outlet, so that an optimal volume of fresh air can be supplied from each first air outlet depending on the number and locations of users, etc.

[0016] Moreover, in the air conditioning system according to the present invention, a plurality of the first air outlets may be provided, and the control unit may control a total amount of the fresh air blown out from the plurality of first air outlets. In the air conditioning system according to the present invention, the control unit may control the total amount of the fresh air in accordance with user information relating to the number of users present in the space.

[0017] In an air conditioning system configured in this manner, the control unit controls the total amount of fresh air blown out from the multiple first air outlets, so that an appropriate amount of fresh air can be supplied to the space depending on the number and positions of users, etc. Effect of the Invention

[0018] According to the air conditioning system of the present invention, fresh air can be supplied to users in a room. [Brief description of the drawings]

[0019] [Figure 1] 1 is a plan view showing an air conditioning system according to an embodiment of the present invention and an air conditioning system according to a modified example of the embodiment. [Diagram 2] FIG. 2 is a schematic diagram showing an air conditioning system according to an embodiment of the present invention, illustrating an entry mode. [Diagram 3] FIG. 2 is a diagram showing a schematic diagram of a flow of fresh air in an air conditioning system according to an embodiment of the present invention. [Figure 4] FIG. 2 is a schematic diagram illustrating an air conditioning system according to an embodiment of the present invention, showing an increased headcount mode. [Diagram 5] FIG. 2 is a schematic diagram of an air conditioning system according to an embodiment of the present invention, showing an airflow selection mode. [Figure 6] FIG. 2 is a schematic diagram showing an air conditioning system according to an embodiment of the present invention, illustrating an exit mode. [Figure 7] FIG. 11 is a schematic diagram showing an air conditioning system according to a modified embodiment of the present invention, illustrating a room entry mode. [Figure 8] FIG. 13 is a schematic diagram showing an air conditioning system according to a modified embodiment of the present invention, illustrating an increased number of personnel mode. [Figure 9] FIG. 10 is a schematic diagram showing an air conditioning system according to a modified embodiment of the present invention, showing an airflow selection mode. [Figure 10] FIG. 11 is a schematic diagram showing an air conditioning system according to a modified embodiment of the present invention, showing an exit mode. [Figure 11] 1 shows a simulation result in which an air conditioning system according to an embodiment of the present invention is installed in an open space. [Figure 12] The figures show the results of a simulation in which a conventional convection air conditioning system was installed in an open space. [Figure 13] 1 shows a simulation result in which an air conditioning system according to an embodiment of the present invention is installed in a conference room. [Figure 14] The following shows the simulation results when a conventional convection air conditioning system is installed in a conference room. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] An air conditioning system according to one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing an air conditioning system according to one embodiment of the present invention and an air conditioning system according to a modified example of the embodiment. As shown in Fig. 1, an air conditioning system 100 according to this embodiment is installed in a space 1A such as a conference room or office of a building. An air conditioning system 100B according to a modified example of this embodiment is installed in a space 1B such as a private room that is smaller in space than the space 1A. First, the configuration of the air conditioning system 100 will be described, and then the configuration of the air conditioning system 100B will be described.

[0021] Desks (airflow adjustment units, furniture) 110 are installed in the space room 1A. In this embodiment, three desks 110 are installed in the approximate center of the space room 1A. The arrangement positions and number of desks 110 can be set appropriately.

[0022] The desk 110 has a lower support 111 (see FIG. 2) installed on the floor 104, and a top board 112 supported by the lower support 111. A space T (see FIG. 2) is formed between the top board 112 and the floor 104 vertically below the top board 112. Here, the side of the desk 110 that the user P faces may be referred to as the front side, and the opposite side may be referred to as the back side.

[0023] The lower support 111 may support the end portion on the far side of the top plate 112 as shown in FIG. 3, or may support approximately the center of the top plate in the front-rear direction as shown in FIG.

[0024] As shown in Fig. 1, chairs 115 are installed in the space room 1A. The chairs 115 are arranged on both sides of the desk 110 in the depth direction X. In this embodiment, twelve chairs 115 are installed. The arrangement positions and number of the chairs 115 can be set appropriately.

[0025] FIG. 2 is a schematic diagram showing an air conditioning system according to an embodiment of the present invention, illustrating the entry mode. As shown in FIG. 2, the air conditioning system 100 includes a radiant air conditioning device 1, a floor air outlet (first air outlet) 2, a ceiling air outlet (second air outlet) 3, a ceiling exhaust port 4, and a control unit 5.

[0026] The radiant air conditioning equipment 1 is installed on the ceiling 101 of the space room 1A. The radiant air conditioning equipment 1 has a radiant panel 11, cold and hot water piping 12, and a heat source unit (not shown). It is configured so that medium-temperature cold water, which is a heat medium that has been heat exchanged in the heat source unit, flows through the cold and hot water piping 12 installed in the ceiling space 102 and is introduced into the radiant panel 11 installed in the ceiling 101. The radiant air conditioning equipment 1 has a well-known configuration. It is noted that the radiant air conditioning equipment 1 does not necessarily have to be installed in the space room 1A.

[0027] The floor air outlets 2 are provided in the floor 104 of the space room 1A. In this embodiment, four floor air outlets 2 are provided. The number of floor air outlets 2 can be set appropriately.

[0028] A fan-equipped air supply member 21 is provided below the floor air outlet 2. The fan-equipped air supply member 21 is installed in the underfloor space 105. Fresh air (outside air) introduced from a desiccant air conditioner (not shown) flows through the underfloor space 105 and is introduced into the fan-equipped air supply member 21. When the fan (not shown) of the fan-equipped air supply member 21 is operated, fresh air is supplied from the floor air outlet 2 into the space room 1A. The floor air outlet 2 blows out fresh air toward the space T vertically below the top plate 112 of the desk 110. Note that the desiccant air conditioner is an example, and fresh air may be introduced from another device. The floor air outlet 2 and the desiccant air conditioner may be connected via a duct (not shown) installed in the underfloor space 105.

[0029] As shown in FIG. 1, the floor air outlet 2 is disposed directly below the top plate 112 of the desk 110. In other words, the top plate 112 is disposed directly above the floor air outlet 2. In a plan view, the floor air outlet 2 is disposed at the center of the top plate 112 in the depth direction X. In this embodiment, chairs 115 are disposed on both sides of the desk 110 in the depth direction, so that users P are seated on both sides of the desk 110. In this embodiment, the floor air outlet 2 is disposed at the center of the top plate 112 in the depth direction X in a plan view, but the position of the floor air outlet 2 can be set appropriately. The floor air outlet 2 is preferably disposed directly below the top plate 112, but may be disposed at a position slightly shifted from the top plate 112 in a plan view, directly below the chair 115, or the like.

[0030] As shown in Fig. 2, the ceiling air outlet 3 is provided in the ceiling 101 of the space room 1A. In this embodiment, the ceiling air outlet 3 is provided near a wall 103 of the space room 1A. Two ceiling air outlets 3 are provided. The arrangement position and number of the ceiling air outlets 3 can be set appropriately, and the ceiling air outlets 3 do not necessarily have to be provided.

[0031] A fan-equipped air supply member 31 is provided above the ceiling air outlet 3. The fan-equipped air supply member 31 is installed in the ceiling space 102. When a fan (not shown) of the fan-equipped air supply member 31 is operated, cool air in the ceiling space 102 is supplied from the ceiling air outlet 3 into the space room 1A.

[0032] The ceiling exhaust port 4 is provided in the ceiling 101 of the space chamber 1A. Air in the space chamber 1A is sucked in through the ceiling exhaust port 4 and exhausted to the outside through the ceiling space 102. In this embodiment, two ceiling exhaust ports 4 are provided. The arrangement position and number of the ceiling air outlets 3 can be set appropriately. The air sucked in through the ceiling exhaust port 4 may be exhausted to the outside through a duct (not shown) installed in the ceiling space 102. The ceiling exhaust port 4 may be a punched hole (not shown) formed in the ceiling 101, and may be configured to suck in air through the punched hole.

[0033] The control unit 5 is electrically connected to the floor air outlet 2. For example, the control unit 5 obtains user information such as whether users are present in the space room 1A, whether they are absent, and if present, the number of users, from position information of a smartphone, personal computer, tablet terminal, etc. The method of obtaining the user information is not limited to this. The user information may be obtained from image data or thermal imaging data of a camera installed in the space room 1A. Alternatively, the user information may be obtained from a seating sensor provided on the chair 115. Alternatively, the user information may be obtained from an ultrasonic sensor or the like. The user information includes information such as the preferences of each user that has been registered in advance or obtained during use. The control unit 5 detects the user's preferences from a detection sensor (CO 2 The information may be obtained from sensors that detect gases, etc. emitted by users.

[0034] The control unit 5 controls the total amount of fresh air blown out from all floor air outlets 2 based on the user information. For example, the control unit 5 controls the rotation speed of the fans of the floor air outlets 2 to adjust the volume of air blown out from each floor air outlet 2. The rotation speed of the fans of the multiple floor air outlets 2 may be set to be the same, or the rotation speed of the fans of the multiple floor air outlets 2 may be set to be different. Alternatively, the floor air outlets 2 may be provided with an opening / closing mechanism, and the volume of air may be adjusted by opening and closing the floor air outlets 2. For example, if there is one user P, the volume of air blown out from each floor air outlet 2 may be adjusted by controlling the rotation speed of the fans of the multiple floor air outlets 2. 3 The air volume is set to about 300 m / h if there are 10 users P. 3 The air volume is set to about 450 m / h if there are 15 users P. 3 Set the airflow rate to about / h.

[0035] FIG. 3 is a diagram showing a schematic diagram of the flow of fresh air in the air conditioning system 100. As shown in FIG. As shown in Fig. 3, fresh air A from the desiccant air conditioner flows through the underfloor space 105 and is introduced into the fan-equipped air supply member 21. When the fan is activated, the fresh air A is supplied from the floor air outlet 2 into the space room 1A and moves upward.

[0036] From the floor air outlet 2 disposed directly below the desk 110, fresh air A is blown out toward a space T vertically below the top plate 112 of the desk 110. The fresh air A moves upward between the lower support 111 of the desk 110 and a user P seated on a chair 115 in the depth direction X. When the fresh air A reaches the underside of the top plate 112 of the desk 110, it moves upward along the user P from a gap S between the front end of the top plate 112 and the user P. The fresh air A rides on an updraft B of heat emitted from the user P and is supplied to the mouth of the user P.

[0037] Fresh air A rides on the updraft B from user P and rises further, reaching ceiling 101. Fresh air A that has reached ceiling 101 is sucked in through ceiling exhaust vent 4 and exhausted to the outside through ceiling space 102. Note that it is preferable for fresh air A to reach the living area, which is an area 1.8 m above floor 104.

[0038] In this way, the top plate 112 of the desk 110 functions to adjust the direction of the airflow so that the fresh air A that reaches the underside of the top plate 112 is guided toward the user P without moving any further upward. Also, the lower support 111 of the desk 110 has a function to adjust the direction of the airflow so that the fresh air A supplied from the floor air outlet 2 does not move beyond the lower support 111. If the lower support 111 is configured to close the area below the top plate 112, it is possible to more effectively prevent the fresh air A from moving beyond the lower support 111.

[0039] Next, a description will be given of a method for controlling the above-mentioned air conditioning system 100. Note that the control method described below is an example, and is not limited to this.

[0040] There are four control methods: an entry mode shown in FIG. 2, an increased number of people mode shown in FIG. 4, an airflow selection mode shown in FIG. 5, and an exit mode shown in FIG.

[0041] <Entry mode> As shown in Fig. 2, when a user P enters the space room 1A, the control unit 5 controls the fan of the fan-equipped air supply member 21 of the floor air outlet 2 to operate at low speed based on the user information. This introduces a small amount of fresh air A into the space room 1A from the floor air outlet 2. At this time, the fan of the fan-equipped air supply member 31 of the ceiling air outlet 3 is stopped.

[0042] <Increased Personnel Mode> FIG. 4 is a schematic diagram showing the air conditioning system 100 in an increased headcount mode. As shown in Fig. 4, when the number of users P in the space room 1A increases, the control unit 5 controls the operation of the fan of the fan-equipped air supply member 21 of the floor air outlet 2 to switch to medium or strong operation based on the user information. As the number of users P increases, the operation is switched from weak to medium, and from medium to strong. This introduces a medium or large amount of fresh air A into the space room 1A from the floor air outlet 2. At this time, the fan of the ceiling air outlet 3 is stopped.

[0043] <Airflow selection mode> FIG. 5 is a schematic diagram showing an air conditioning system 100, illustrating the airflow selection mode. As shown in Fig. 5, in addition to switching the operation of the fan of the fan-equipped air supply member 21 of the floor air outlet 2 to low, medium, or high depending on the number of users P in the space room 1A, the user P may set the operation of the fan of the ceiling air outlet 3 to low, medium, or high. This promotes the feeling of airflow. The user P can set the operation of the fan of the ceiling air outlet 3 from a smartphone, personal computer, tablet terminal, etc.

[0044] <Exit mode> FIG. 6 is a schematic diagram showing the air conditioning system 100 in the exit mode. As shown in Fig. 6, when a user P leaves the space room 1A, the control unit 5 controls the fan of the fan-equipped air supply member 21 of the floor air outlet 2 to stop based on the user information. This stops the fresh air A from the floor air outlet 2 into the space room 1A. At this time, the fan of the ceiling air outlet 3 is stopped.

[0045] In all modes, including the entry mode, the increased number of people mode, the airflow selection mode, and the exit mode, the radiant air-conditioning equipment 1 operates in base operation. Note that the air volume blown out from the floor air outlet 2 and the ceiling air outlet 3 may be configured to be set to an air volume preferred by the individual user P in addition to strong (strong operation), medium (medium operation), and weak (weak operation).

[0046] In the air conditioning system 100 configured in this manner, a floor air outlet 2 is provided on the floor 104. The floor air outlet 2 blows out fresh air A toward the space T vertically below the top plate 112 of the desk 110. As a result, the fresh air A passes through the space T vertically below the top plate 112 and moves upward along the user P through the gap S between the top plate 112 and the user P. Thus, fresh air A can be supplied to the user P in the space room 1A.

[0047] In addition, since the desk 110 adjusts the direction of the fresh air A so that it flows toward the user P in the space room 1A, the fresh air A is likely to reach the user P while its air age is still young.

[0048] Furthermore, the top plate 112 of the desk 110 is disposed directly above the floor air outlet 2. As a result, when the fresh air A blown out from the floor air outlet 2 moves upward and reaches the underside of the top plate 112, it moves upward along the user P through the gap S between the top plate 112 and the user P. The fresh air A is supplied to the mouth of the user P by riding on the rising air current from the user P. Therefore, the fresh air A easily reaches the mouth of the user P while the air age is still young.

[0049] Also, since ceiling 101 is provided with ceiling air outlet 3 for blowing out cool air from within ceiling space 102, the feeling of air flow can be promoted.

[0050] In addition, since the control unit 5 adjusts the amount of fresh air A blown out from the floor air outlets 2, an optimal volume of fresh air A can be supplied from each floor air outlet 2 depending on the number and positions of users P, etc.

[0051] In addition, the control unit 5 controls the total amount of fresh air A blown out from the multiple floor air outlets 2, so that an appropriate amount of fresh air A can be supplied into the space room 1A depending on the number and positions of users P, etc.

[0052] In addition, by switching between four modes, namely, an entry mode, an increased number of people mode, an airflow selection mode, and an exit mode, an appropriate volume of fresh air A can be supplied depending on the number and positions of users P in the space room 1A.

[0053] (Modification) Next, an air conditioning system according to a modification of the embodiment shown above will be described mainly with reference to FIG. 1 and FIGS. In the following modifications, the same members as those used in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

[0054] FIG. 7 is a schematic diagram showing an air conditioning system according to a modified embodiment of the present invention, illustrating the entry mode. As shown in FIG. 7, an air conditioning system 100B according to this modified example includes a radiant air conditioning device 1, a personal floor air outlet (first air outlet) 2A, a floor air outlet 2B, a ceiling exhaust port 4, and a control unit 5.

[0055] The personal floor air outlets 2A are provided in the floor 104 of the space room 1B. As shown in Fig. 1, in this embodiment, six personal floor air outlets 2A are provided. The number of personal floor air outlets 2A can be set appropriately.

[0056] As shown in Fig. 7, a fan-equipped air supply member 21 is provided below the personal floor air outlet 2A. When a fan (not shown) of the fan-equipped air supply member 21 operates, fresh air is supplied from the personal floor air outlet 2A into the space room 1A. The fan of the personal floor air outlet 2A is configured to be operable by a smartphone, personal computer, tablet terminal, or the like (hereinafter referred to as "operation device") (not shown) of the user P.

[0057] The floor air outlet 2B is provided in a floor 104 of the space room 1B. Fresh air A flows through an underfloor space 105 and can be supplied into the space room 1A from the floor air outlet 2B.

[0058] Next, a control method for the above-mentioned air conditioning system 100B will be described. Note that the control method described below is an example, and is not limited to this.

[0059] There are four control methods: an entry mode shown in FIG. 7, an increased number of people mode shown in FIG. 8, an airflow selection mode shown in FIG. 9, and an exit mode shown in FIG.

[0060] <Entry mode> As shown in Fig. 7, when a user P enters the space room 1B, the control unit 5 controls the fan of the fan-equipped air supply member 21 of the personal floor air outlet 2A to operate at low speed based on the user information. This introduces a small amount of fresh air A into the space room 1B from the personal floor air outlet 2A.

[0061] <Increased Personnel Mode> FIG. 8 is a schematic diagram showing an air conditioning system 100B in an increased headcount mode. As shown in FIG. 8, even if the number of users P in the space room 1B increases, the fan of the fan-equipped air supply member 21 of the personal floor air outlet 2A remains at low operation.

[0062] <Airflow selection mode> FIG. 9 is a schematic diagram showing an air conditioning system 100B, illustrating the airflow selection mode. As shown in Fig. 9, as the number of users P in the space room 1B increases, the users P can operate the operating device to switch the operation of the fan of the fan-equipped air supply member 21 of the personal floor air outlet 2A from low to medium or high. This promotes the feeling of airflow.

[0063] <Exit mode> FIG. 10 is a schematic diagram showing an air conditioning system 100B in the exit mode. As shown in Fig. 10, when the user P leaves the space room 1B, the control unit 5 controls the fan of the fan-equipped air supply member 21 of the personal floor air outlet 2A to stop based on the user information. This stops the fresh air A from the personal floor air outlet 2A into the space room 1B.

[0064] In all of the modes, namely the entry mode, the occupancy increase mode, the airflow selection mode, and the exit mode, the radiant air-conditioning equipment 1 operates in base operation.

[0065] In the air conditioning system 100B configured in this manner, a personal floor air outlet 2A is provided on the floor 104. The personal floor air outlet 2A blows out fresh air A toward the space T vertically below the top plate 112 of the desk 110. As a result, the fresh air A passes through the space T vertically below the top plate 112 and moves upward along the user P through the gap S between the top plate 112 and the user P. Thus, fresh air A can be supplied to the user P in the space room 1B.

[0066] In addition, the user P can operate the operating device to switch the operation of the fan of the fan-equipped air supply member 21 of the personal floor air outlet 2A to low, medium, or high. Therefore, the user P can introduce fresh air A from below the chair 115 at a volume that suits his or her preference, creating a more comfortable environment.

[0067] Next, the results of analysis by simulation of the air conditioning system of this embodiment are shown. Fig. 11 shows the simulation result when the air conditioning system of this embodiment is installed in an open space, Fig. 12 shows the simulation result when a conventional convection air conditioning system is installed in an open space, Fig. 13 shows the simulation result when the air conditioning system of this embodiment is installed in a conference room, and Fig. 14 shows the simulation result when a conventional convection air conditioning system is installed in a conference room.

[0068] As shown in Figs. 12 and 14, it can be seen that the area around the user P is filled with air with low freshness.

[0069] On the other hand, as shown in Figures 11 and 13, in the air conditioning system of this embodiment, fresh air supplied from the floor air outlet moves upward. The fresh air accumulates under the top plate 112 of the desk 110 and moves upward along the user P through the gap between the top plate 112 and the user P. The fresh air rides on the rising air current of the heat emitted by the user P and is supplied to the mouth of the user P. It can be seen that the fresh air rides on the rising air current from the user P and further rises, reaching the ceiling 101.

[0070] The shapes and combinations of the components shown in the above-described embodiment are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present invention.

[0071] For example, in the above embodiment, the desk 110 is used as an example of the airflow direction adjustment unit, but the present invention is not limited to this. The airflow direction adjustment unit may be any unit that adjusts the airflow direction so that the airflow flows toward the user P. For example, the airflow direction adjustment unit may be a wind direction plate that is gradually inclined toward the user P as it goes upward. [Explanation of symbols]

[0072] 1. Radiant air conditioning equipment 1A,1B…Space room 2…Floor outlet (first outlet) 2A…Personal floor air outlet (first air outlet) 2B…Floor outlet 3…Ceiling outlet (second outlet) 4…Ceiling exhaust vent 5. Control section 100,100B…Air conditioning system 101...Ceiling 103...Wall 104…Floor 110…Desk (airflow adjustment unit, furniture) 112…Tabletop A: Fresh air P...User

Claims

1. An air conditioning system to be installed in a building in which a fixture is arranged so that a space is formed vertically below the top plate, Radiant air conditioning equipment installed on the ceiling, A desiccant air conditioner that introduces fresh air, a wind direction adjusting unit that adjusts the direction of the fresh air so that the fresh air flows toward a user in a space of the building; Equipped with A first air outlet for blowing out the fresh air introduced from the desiccant air conditioner is provided on a floor of the building, The air conditioning system, characterized in that the first air outlet blows out the fresh air toward the space formed vertically below the top plate.

2. The airflow direction adjustment unit is the fixture, The air conditioning system according to claim 1 , wherein the top plate is disposed directly above the first air outlet.

3. The air conditioning system according to claim 1 or 2, further comprising a control unit that adjusts an amount of the fresh air blown out from the first air outlet.

4. The first air outlet is provided in plurality, The air conditioning system according to claim 3 , wherein the control unit controls a total amount of the fresh air blown out from the plurality of first air outlets.

5. An air conditioning system as described in Claim 4, wherein the control unit controls the total amount of fresh air in accordance with user information regarding the number of users present in the space room.

Citation Information

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